Horton

Re: Race conditions in 019_replslot_limit.pl

Andres Freund <andres@anarazel.de>

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From: Andres Freund <andres@anarazel.de>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Masahiko Sawada <sawada.mshk@gmail.com>, Kyotaro Horiguchi <horikyota.ntt@gmail.com>, hlinnaka@iki.fi, pgsql-hackers@postgresql.org
Date: 2022-03-28T05:37:34Z
Lists: pgsql-hackers 
Hi,

On 2022-03-27 17:36:14 -0400, Tom Lane wrote:
> Andres Freund <andres@anarazel.de> writes:
> > I still feel like there's something off here. But that's probably not enough
> > to keep causing failures. I'm inclined to leave the debugging in for a bit
> > longer, but not fail the test anymore?
> 
> WFM.

I've done so now.

Greetings,

Andres Freund

Commits

  1. Revert 019_replslot_limit.pl related debugging aids.

  2. Don't fail for > 1 walsenders in 019_replslot_limit, add debug messages.

  3. Add retries for further investigation of 019_replslot_limit.pl failures.

  4. Add further debug info to help debug 019_replslot_limit.pl failures.

  5. Add temporary debug info to help debug 019_replslot_limit.pl failures.

  6. Move replication slot release to before_shmem_exit().

  7. Server-side fix for delayed NOTIFY and SIGTERM processing.